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vms update

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Suppress Isaac64 on VAX were there isn't an easy way to do 64-bit
arithmetic.  (Hard way isn't worth it for just an alternate RNG.)

Eliminate or suppress some diagnostics:

1) In strict ANSI mode, DEC C was reporting that '$' in identifier is
an extension (one time for each file in sys/vms/*.c).  (It doesn't do
that for the default 'relaxed ANSI' mode.)

2) DEC C uses WIDENED_PROTOTYPES but widens uchar (unsigned char)
differently depending upon the mode it is operating in.  (Applies to
Unix as well as VMS; based on documentation rather than testing.)

Update the comment in tradstdc.h about WIDENED vs UNWIDENED_PROTOTYPES.

An old comment in config1.h about a problem with the earliest version
of DEC C was probably based on an incorrect assumption of what was
really going, but I have no way to go back in time to verify that....
This commit is contained in:
PatR
2019-03-07 17:12:01 -08:00
parent 8728de2a0a
commit df84da3ec2
4 changed files with 57 additions and 16 deletions
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10
include/config1.h
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@@ -1,4 +1,4 @@
/* NetHack 3.6 config1.h $NHDT-Date: 1432512781 2015/05/25 00:13:01 $ $NHDT-Branch: master $:$NHDT-Revision: 1.17 $ */
/* NetHack 3.6 config1.h $NHDT-Date: 1552007489 2019/03/08 01:11:29 $ $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.20 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Kenneth Lorber, Kensington, Maryland, 2015. */
/* NetHack may be freely redistributed. See license for details. */
@@ -146,7 +146,9 @@
#undef UNIX
#ifdef __DECC
#ifndef __DECC_VER /* buggy early versions want widened prototypes */
#define NOTSTDC /* except when typedefs are involved */
#define NOTSTDC /* except when typedefs are involved */
/* [25 or so years later... That was probably uchar widening to */
/* 'unsigned int' rather than anything to do with typedefs. pr] */
#define USE_VARARGS
#else
#define NHSTDC
@@ -200,10 +202,10 @@
/* Because:
* #define FOO => FOO={} => defined( ) => (-1 != - - 1) => 1
* #define FOO 1 or on command-line -DFOO
* => defined(1) => (-1 != - 1 - 1) => 1
* => defined(1) => (-1 != - 1 - 1) => 1
* if FOO isn't defined, FOO=0. But some compilers default to 0 instead of 1
* for -DFOO, oh well.
* => defined(0) => (-1 != - 0 - 1) => 0
* => defined(0) => (-1 != - 0 - 1) => 0
*
* But:
* defined("") => (-1 != - "" - 1)